public ActionResult Create([FromBody] EvaluationPeriodModel model)
        {
            //validation

            if (ModelState.IsValid)
            {
                //  model.FromDate = Business.Base.GetMiladiDate(model.FromDatePersian);
                //  model.ToDate = Business.Base.GetMiladiDate(model.ToDatePersian);
                db.Add(model);
                db.SaveChangesAsync();
            }
            return(Ok());
        }
        public ActionResult Delete([FromBody] EvaluationPeriodModel model)
        {
            //validation
            var result = AllItems.Where(x => x.PeriodId == model.PeriodId).FirstOrDefault();

            if (result == null)
            {
                return(BadRequest());
            }
            db.Remove(result);
            db.SaveChangesAsync();
            return(Ok());
        }
        public ActionResult Edit([FromBody] EvaluationPeriodModel model)
        {
            //validation
            var result = AllItems.Where(x => x.PeriodId == model.PeriodId).FirstOrDefault();

            if (result == null)
            {
                return(BadRequest());
            }
            result.Title               = model.Title;
            result.ToDate              = model.ToDate;
            result.FromDate            = model.FromDate;
            result.ReginalPowerCorpRef = model.ReginalPowerCorpRef;
            result.State               = model.State;
            result.Description         = model.Description;
            db.Update(result);
            db.SaveChangesAsync();
            return(Ok());
        }